Abstract
Purpose: Although chronic pain might affect to sleep, there is no clearly defined relation between orofacial pain and sleep. The aim of this study was to illustrate the quality of sleep for the patients with glossodynia as oral chronic pain using sleep questionnaire.
Methods: Thirteen primary glossodynia and nineteen secondary glossodynia patients were compared with nineteen healthy control subjects （HC） matched for age and sex. Especially, secondary glossodynia was decided as oral candida disease. The Japanese version of Pittsburgh sleep quality index （PSQI） and the visual analog scale （VAS） for glossalgia were administrated. The evaluated items contained the seven sleep-related components, PSQI global score （PSQIG）, illness duration and VAS for sleep disturbance. Furthermore, PSQIG was divided into sleep disturbance or non-sleep disturbance to indicate quality of sleep.
Results: There were not significant differences between sleep conditions and illness duration or VAS in glossodynia patients in comparison with HC. However, primary glossodynia patients had higher score of subjective sleep quality than HC （P＝0.03）. Secondary glossodynia patients had higher scores of subjective sleep quality than HC （P＝0.02, respectively）. Furthermore, sleep disturbance of each glossodynia patients was significant worse than HC （P＝0.04）.
Conclusion: Glossodynia patients complained sleep disturbance as compared with healthy control subjects. Glossalgia as oral chronic pain might reduce quality of sleep.
